One problem related to brake pedal and linkage has been reported for the 1999 Mercury Mountaineer. The most recently reported issues are listed below.
While driving there was unattended acceleration. Consumer's foot actually was on the brake and at the accelerator pedal at the same time. The pedals were very close together. Accident occurred. Vehicle was totaled. Upon impact, the air bags did not deploy. . . . . . Once off the exit ram slid through grass an dinto pine tree.